org.mozilla.javascript.typedarrays

Class NativeTypedArrayView<T>

java.lang.Object

org.mozilla.javascript.ScriptableObject

org.mozilla.javascript.IdScriptableObject

org.mozilla.javascript.typedarrays.NativeArrayBufferView

org.mozilla.javascript.typedarrays.NativeTypedArrayView<T>

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<T>, java.util.Collection<T>, java.util.List<T>, java.util.RandomAccess, ConstProperties, DebuggableObject, ExternalArrayData, IdFunctionCall, Scriptable, SymbolScriptable

Direct Known Subclasses:

NativeFloat32Array, NativeFloat64Array, NativeInt16Array, NativeInt32Array, NativeInt8Array, NativeUint16Array, NativeUint32Array, NativeUint8Array, NativeUint8ClampedArray

public abstract class NativeTypedArrayView<T>
extends NativeArrayBufferView
implements java.util.List<T>, java.util.RandomAccess, ExternalArrayData

This class is the abstract parent for all of the various typed arrays. Each one shows a view of a specific NativeArrayBuffer, and modifications here will affect the rest.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.mozilla.javascript.ScriptableObject

ScriptableObject.KeyComparator

Field Summary

Fields

Modifier and Type	Field and Description
protected int	length The length, in elements, of the array
protected static int	MAX_PROTOTYPE_ID

Fields inherited from class org.mozilla.javascript.typedarrays.NativeArrayBufferView

arrayBuffer, byteLength, offset

Fields inherited from class org.mozilla.javascript.ScriptableObject

CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

Fields inherited from interface org.mozilla.javascript.Scriptable

NOT_FOUND

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	NativeTypedArrayView()
protected	NativeTypedArrayView(NativeArrayBuffer ab, int off, int len, int byteLen)

Method Summary

Modifier and Type	Method and Description
void	add(int i, T aByte)
boolean	add(T aByte)
boolean	addAll(java.util.Collection<? extends T> bytes)
boolean	addAll(int i, java.util.Collection<? extends T> bytes)
protected boolean	checkIndex(int index)
void	clear()
protected abstract NativeTypedArrayView<T>	construct(NativeArrayBuffer ab, int off, int len)
boolean	contains(java.lang.Object o)
boolean	containsAll(java.util.Collection<?> objects)
void	delete(int index) Removes the indexed property from the object.
boolean	equals(java.lang.Object o)
java.lang.Object	execIdCall(IdFunctionObject f, Context cx, Scriptable scope, Scriptable thisObj, java.lang.Object[] args) 'thisObj' will be null if invoked as constructor, in which case instance of Scriptable should be returned.
protected void	fillConstructorProperties(IdFunctionObject ctor)
protected int	findInstanceIdInfo(java.lang.String s) Map name to id of instance property.
protected int	findPrototypeId(java.lang.String s)
protected int	findPrototypeId(Symbol k)
java.lang.Object	get(int index, Scriptable start) Returns the value of the indexed property or NOT_FOUND.
java.lang.Object	getArrayElement(int index) Return the element at the specified index.
int	getArrayLength() Return the length of the array.
abstract int	getBytesPerElement() Return the number of bytes represented by each element in the array.
java.lang.Object[]	getIds() Returns an array of ids for the properties of the object.
protected java.lang.String	getInstanceIdName(int id) Map id back to property name it defines.
protected java.lang.Object	getInstanceIdValue(int id) Get id value.
protected int	getMaxInstanceId() Get maximum id findInstanceIdInfo can generate.
boolean	has(int index, Scriptable start) Returns true if the property index is defined.
int	hashCode()
int	indexOf(java.lang.Object o)
protected void	initPrototypeId(int id)
boolean	isEmpty()
java.util.Iterator<T>	iterator()
protected abstract java.lang.Object	js_get(int index)
protected abstract java.lang.Object	js_set(int index, java.lang.Object c)
int	lastIndexOf(java.lang.Object o)
java.util.ListIterator<T>	listIterator()
java.util.ListIterator<T>	listIterator(int start)
void	put(int index, Scriptable start, java.lang.Object val) Sets the value of the indexed property, creating it if need be.
protected abstract NativeTypedArrayView<T>	realThis(Scriptable thisObj, IdFunctionObject f)
T	remove(int i)
boolean	remove(java.lang.Object o)
boolean	removeAll(java.util.Collection<?> objects)
boolean	retainAll(java.util.Collection<?> objects)
void	setArrayElement(int index, java.lang.Object value) Set the element at the specified index.
int	size()
java.util.List<T>	subList(int i, int i2)
java.lang.Object[]	toArray()
<U> U[]	toArray(U[] ts)

Methods inherited from class org.mozilla.javascript.typedarrays.NativeArrayBufferView

getBuffer, getByteLength, getByteOffset, isArg, useLittleEndian

Methods inherited from class org.mozilla.javascript.IdScriptableObject

activatePrototypeMap, addIdFunctionProperty, defaultGet, defaultHas, defaultPut, defineOwnProperty, delete, delete, exportAsJSClass, findInstanceIdInfo, get, get, getAttributes, getAttributes, getOwnPropertyDescriptor, has, has, hasPrototypeMap, incompatibleCallError, initPrototypeConstructor, initPrototypeMethod, initPrototypeMethod, initPrototypeMethod, initPrototypeValue, initPrototypeValue, instanceIdInfo, put, put, setAttributes, setInstanceIdAttributes, setInstanceIdValue

Methods inherited from class org.mozilla.javascript.ScriptableObject

applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, equivalentValues, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getClassName, getClassPrototype, getDefaultValue, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getObjectPrototype, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getSlot, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, hasInstance, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, putConst, putConstProperty, putProperty, putProperty, putProperty, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.List

get, replaceAll, set, sort, spliterator

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Field Detail

length

protected final int length

The length, in elements, of the array

MAX_PROTOTYPE_ID

protected static final int MAX_PROTOTYPE_ID

See Also:

Constant Field Values

Constructor Detail

NativeTypedArrayView

protected NativeTypedArrayView()

NativeTypedArrayView

protected NativeTypedArrayView(NativeArrayBuffer ab,
                               int off,
                               int len,
                               int byteLen)

Method Detail

get

public java.lang.Object get(int index,
                            Scriptable start)

Description copied from class: ScriptableObject

Returns the value of the indexed property or NOT_FOUND.

Specified by:

get in interface Scriptable

Overrides:

get in class ScriptableObject

Parameters:

index - the numeric index for the property

start - the object in which the lookup began

Returns:

the value of the property (may be null), or NOT_FOUND

See Also:

Scriptable.get(String,Scriptable)

has

public boolean has(int index,
                   Scriptable start)

Description copied from class: ScriptableObject

Returns true if the property index is defined.

Specified by:

has in interface Scriptable

Overrides:

has in class ScriptableObject

Parameters:

index - the numeric index for the property

start - the object in which the lookup began

Returns:

true if and only if the property was found in the object

See Also:

Scriptable.get(int, Scriptable), ScriptableObject.getProperty(Scriptable, int)

put

public void put(int index,
                Scriptable start,
                java.lang.Object val)

Description copied from class: ScriptableObject

Sets the value of the indexed property, creating it if need be.

Specified by:

put in interface Scriptable

Overrides:

put in class ScriptableObject

Parameters:

index - the numeric index for the property

start - the object whose property is being set

val - value to set the property to

See Also:

Scriptable.has(int, Scriptable), Scriptable.get(int, Scriptable), ScriptableObject.putProperty(Scriptable, int, Object), Context.toObject(Object, Scriptable)

delete

public void delete(int index)

Description copied from class: ScriptableObject

Removes the indexed property from the object. If the property is not found, or it has the PERMANENT attribute, no action is taken.

Specified by:

delete in interface Scriptable

Overrides:

delete in class ScriptableObject

Parameters:

index - the numeric index for the property

See Also:

Scriptable.get(int, Scriptable), ScriptableObject.deleteProperty(Scriptable, int)

getIds

public java.lang.Object[] getIds()

Description copied from class: ScriptableObject

Returns an array of ids for the properties of the object.

Any properties with the attribute DONTENUM are not listed.

Specified by:

getIds in interface Scriptable

Overrides:

getIds in class ScriptableObject

Returns:

an array of java.lang.Objects with an entry for every listed property. Properties accessed via an integer index will have a corresponding Integer entry in the returned array. Properties accessed by a String will have a String entry in the returned array.

checkIndex

protected boolean checkIndex(int index)

getBytesPerElement

public abstract int getBytesPerElement()

Return the number of bytes represented by each element in the array. This can be useful when wishing to manipulate the byte array directly from Java.

construct

protected abstract NativeTypedArrayView<T> construct(NativeArrayBuffer ab,
                                                     int off,
                                                     int len)

js_get

protected abstract java.lang.Object js_get(int index)

js_set

protected abstract java.lang.Object js_set(int index,
                                           java.lang.Object c)

realThis

protected abstract NativeTypedArrayView<T> realThis(Scriptable thisObj,
                                                    IdFunctionObject f)

execIdCall

public java.lang.Object execIdCall(IdFunctionObject f,
                                   Context cx,
                                   Scriptable scope,
                                   Scriptable thisObj,
                                   java.lang.Object[] args)

Description copied from class: IdScriptableObject

'thisObj' will be null if invoked as constructor, in which case instance of Scriptable should be returned.

Specified by:

execIdCall in interface IdFunctionCall

Overrides:

execIdCall in class IdScriptableObject

initPrototypeId

protected void initPrototypeId(int id)

Overrides:

initPrototypeId in class IdScriptableObject

findPrototypeId

protected int findPrototypeId(Symbol k)

Overrides:

findPrototypeId in class IdScriptableObject

findPrototypeId

protected int findPrototypeId(java.lang.String s)

Overrides:

findPrototypeId in class IdScriptableObject

fillConstructorProperties

protected void fillConstructorProperties(IdFunctionObject ctor)

Overrides:

fillConstructorProperties in class IdScriptableObject

getMaxInstanceId

protected int getMaxInstanceId()

Description copied from class: IdScriptableObject

Get maximum id findInstanceIdInfo can generate.

Overrides:

getMaxInstanceId in class NativeArrayBufferView

getInstanceIdName

protected java.lang.String getInstanceIdName(int id)

Description copied from class: IdScriptableObject

Map id back to property name it defines.

Overrides:

getInstanceIdName in class NativeArrayBufferView

getInstanceIdValue

protected java.lang.Object getInstanceIdValue(int id)

Description copied from class: IdScriptableObject

Get id value. If id value is constant, descendant can call cacheIdValue to store value in the permanent cache. Default implementation creates IdFunctionObject instance for given id and cache its value

Overrides:

getInstanceIdValue in class NativeArrayBufferView

findInstanceIdInfo

protected int findInstanceIdInfo(java.lang.String s)

Description copied from class: IdScriptableObject

Map name to id of instance property. Should return 0 if not found or the result of IdScriptableObject.instanceIdInfo(int, int).

Overrides:

findInstanceIdInfo in class NativeArrayBufferView

getArrayElement

public java.lang.Object getArrayElement(int index)

Description copied from interface: ExternalArrayData

Return the element at the specified index. The result must be a type that is valid in JavaScript: Number, String, or Scriptable. This method will not be called unless "index" is in range.

Specified by:

getArrayElement in interface ExternalArrayData

setArrayElement

public void setArrayElement(int index,
                            java.lang.Object value)

Description copied from interface: ExternalArrayData

Set the element at the specified index. This method will not be called unless "index" is in range. The method must check that "value" is a valid type, and convert it if necessary.

Specified by:

setArrayElement in interface ExternalArrayData

getArrayLength

public int getArrayLength()

Description copied from interface: ExternalArrayData

Return the length of the array.

Specified by:

getArrayLength in interface ExternalArrayData

containsAll

public boolean containsAll(java.util.Collection<?> objects)

Specified by:

containsAll in interface java.util.Collection<T>

Specified by:

containsAll in interface java.util.List<T>

indexOf

public int indexOf(java.lang.Object o)

Specified by:

indexOf in interface java.util.List<T>

lastIndexOf

public int lastIndexOf(java.lang.Object o)

Specified by:

lastIndexOf in interface java.util.List<T>

toArray

public java.lang.Object[] toArray()

Specified by:

toArray in interface java.util.Collection<T>

Specified by:

toArray in interface java.util.List<T>

toArray

public <U> U[] toArray(U[] ts)

Specified by:

toArray in interface java.util.Collection<T>

Specified by:

toArray in interface java.util.List<T>

size

public int size()

Specified by:

size in interface java.util.Collection<T>

Specified by:

size in interface java.util.List<T>

Overrides:

size in class ScriptableObject

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection<T>

Specified by:

isEmpty in interface java.util.List<T>

Overrides:

isEmpty in class ScriptableObject

contains

public boolean contains(java.lang.Object o)

Specified by:

contains in interface java.util.Collection<T>

Specified by:

contains in interface java.util.List<T>

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Collection<T>

Specified by:

equals in interface java.util.List<T>

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Collection<T>

Specified by:

hashCode in interface java.util.List<T>

Overrides:

hashCode in class java.lang.Object

iterator

public java.util.Iterator<T> iterator()

Specified by:

iterator in interface java.lang.Iterable<T>

Specified by:

iterator in interface java.util.Collection<T>

Specified by:

iterator in interface java.util.List<T>

listIterator

public java.util.ListIterator<T> listIterator()

Specified by:

listIterator in interface java.util.List<T>

listIterator

public java.util.ListIterator<T> listIterator(int start)

Specified by:

listIterator in interface java.util.List<T>

subList

public java.util.List<T> subList(int i,
                                 int i2)

Specified by:

subList in interface java.util.List<T>

add

public boolean add(T aByte)

Specified by:

add in interface java.util.Collection<T>

Specified by:

add in interface java.util.List<T>

add

public void add(int i,
                T aByte)

Specified by:

add in interface java.util.List<T>

addAll

public boolean addAll(java.util.Collection<? extends T> bytes)

Specified by:

addAll in interface java.util.Collection<T>

Specified by:

addAll in interface java.util.List<T>

addAll

public boolean addAll(int i,
                      java.util.Collection<? extends T> bytes)

Specified by:

addAll in interface java.util.List<T>

clear

public void clear()

Specified by:

clear in interface java.util.Collection<T>

Specified by:

clear in interface java.util.List<T>

remove

public T remove(int i)

Specified by:

remove in interface java.util.List<T>

remove

public boolean remove(java.lang.Object o)

Specified by:

remove in interface java.util.Collection<T>

Specified by:

remove in interface java.util.List<T>

removeAll

public boolean removeAll(java.util.Collection<?> objects)

Specified by:

removeAll in interface java.util.Collection<T>

Specified by:

removeAll in interface java.util.List<T>

retainAll

public boolean retainAll(java.util.Collection<?> objects)

Specified by:

retainAll in interface java.util.Collection<T>

Specified by:

retainAll in interface java.util.List<T>